Ice-cream freezer



g- 12, 1930- c. 5. COLE 1,772,456

ICE CREAM FREEZER Filed Nov. 5. 1928 Attorneys cream container and dash"element and has for its object the-provision lofapparatus of" c 155 when thecream has frozen to T the proper .con-

Pat ented Aug. 12; 1930 CLIFFORD Eaoonnf or BIRMINGHAM, enAiaAluegessrqnon nv M simas smmmtei mionor'ivnw YORK To I ET EN HUNDRED CORPORATION, OF

' on-CREAM f My invention relates toice' cream freezers of the typeembodying a" relatively movable the character designated wherein, during operation of thefreezer, relative movement'between the cream c'o'ntainerand dash is automatically interrupted when the cream has frozen to the proper consistency] A more specific object of'my inv ntion is to provideyin an ice cream freezer embodying a rotary cream container and a normally statiOnarydaShQmeans whereby the dash isreleased for rotation with the cream container A' further object of my invention is to pro videineans, in an ice cream freezer, for auto matically indicating when theice dream has frozen to the proper consistency." i

My inventlon is particularly applicable to ice cream freezerssuchw as disclosed in U." S;- Patent No-15682976; issuedSeptember 4 1928, to BasilMcGinnis', although it"vvill be "apparent that may be employed'with other styles'of freezers wherein it is desired to interrupt relative-motion between the cream) container andnfthe dash whenthe cream. has n j ber19which fits over a power shaft21; the

frozen ,to the proper consistency';

Briefly, my "inventionjcomprises a cream container to which rotary motion is imparted in alternately opposite directions by suitable power means, and a dash element within the cream container and normally held against rotation, The meansfor holding the' dash element against rotation, is, in turn; held mor mally stationary -by frictionalengagement with another element whereby, when the cream has frozen to the proper consistency, the. resistance to relative movement between the dash and'creamcontainer is so great as to overcome the friotionally engaging -hold-' ing means and the dashan'dcreanii container then rotate in unison. The holding means for the dash is so arranged as to be readily seen by the operator and thereby serves as an in-- dicator showing when the cream is'frozen.

Apparatus embodying features of my in vention' is illustrated in the: accompanying .in the lower drawings, forming a part of'this application,

whereinf r f Fig. 1 1s a vertical cream freezerembodying m'yinvention; v

Fig. 2 is a transversesectiontaken along theline H n of Fig. -1;' y i 'Fig. 3"is arde'tail plan viewof the holding means for the dash elements.

Referring nowto the'drawings for a bette understanding of m "invention, I show an ice creamfreezer embodying an outer cylinsection through an ice rineneiurolv; New YORK, an mone;

drical casing lfl, made of metal, and provided;

cured in a fluid tight manner to the casing 10 so asto prevent leakage thereby. Within the cylindrical casing 10 is a brine tank 13 portion thereof; with a trans-' verse-wall 11 having a flange 12 which is se wi11*bes en, rms the bottom-of the brine tank 13; is'a sleev'e'16 and which is sosecured to the bottom in itspassage "th'erethrough as to preventleakage thereby. 1 Fitting within the sleeve and extendingtherethrough is a shaft 17 carrying at its upper end a squared I headl8 and at its lower end a coupling memlatter being as illustrated, the powershaft of awell known make of washing machine. The details of the shaft 17 and coupling members18 and 19 are described and claimed in mylapplication, Serial No. 5226;107, filed 00- t'ober 14;, 1927 and form nopart of the pres-' wayits ends so as'to fitr r round the sleeve 22. second strap 26,"similarly provided with an arcuate bend 27 between its having a curved end 28 thereof inserted throu h-a hele 29 provided in the strap 23.

The other endof the strap 26 is forked at 30 to accommodate an adjusting bolt 31 which is provided 'with a shoulder 32 bearing ends, is pivoted to thestrap 23 by means of 9 0i elements46 *arefsecured,

The cream container {His-provided witha 44extends3 of the brine tank 13 is fa strap 51 which is pivotally mounted-to the brine tank at 52 and against the forked end and is provided with a threaded end 34 extending through the strap 23; Fastened to the strap 23 is a nut 33 and the threaded end 34 screws into the nut 33. The outer end of the bolt 31 extends throu-gh theouter wall ofthe casing 10' and is bentto provide a handle-36 whereby the straps 23 and26 may be tightlycclamped about the sleeve 22 .to hold the; freezer in wry-movement; v

1 Mounted within, the brine tank 13 is a cream container 41 provided on it"s'bottom" Y with a socket 42 in which the coupling member 18 fits and by means of which rotary'md tion inalternately opposite directions is -im-' parted to' the cream container. container at the bottom thereof is a bearing 43 for adashcrfshaft 44 towhich; latter, dash place when in use and to hold it against ro'- flanged lid "47, which fits tightly down thereover and which is provided witha-centra1 aperture 48 throughiwhich *the dasher shaft Extending across the upper endwhich has a down-turned end 53 provided witha hole- 54 whichcoacts with a'la-tch 56 to I au-lioldrthe-strap down.- 7 a 'Thestrap; 51 is provided with a central op'ening157- through 'which'the f upper end of thedasher-shaft44 extends,-the latter being provided withazfiattened end 58,- as is best seen in Fig. 3; :Di'sposed on the/underside of-the'strap 51 is a short strap 61 bent to pro- 4 videa recess 62 in which is mounted-a washer' an elongated opening 64 therein fitting=over the flattened end 58 of the dasher The, strap; 62 is held ;in place I by 63' having-v shaft 44.

apair'of screw; head bolts 66 and;67- having nuts 68 and 69 which are welded to the unv der'sideof the strap 62, the screw heads of thebolts" 66 and 67 -projecting' above the strap 51, a v

Bythe arrangement-just described,it will be seen that the washer 63 is held against r0'-" tat-ion byits frictional engagement with the' straps 51 and 62 and that the degree of frictional engagement may be adjusted by tightening or loosening the bolts 66 and 67..

In ;-operation, the 'ice" cream freezer is mounted-in opera'ting position by lowering the caisingf 10 down over the shaft 21 and F sleeve 22, until the coupling member 19 comes overthe end of-the -sh'aft 21, whereupon the bolt 31-is tightened by means of the handle 36,:thus fitmly zholding Ethe casing 10 and brine tank l3aga1nst= rotation witlrtlie shaft 21. Thecream container 41 isnext placed he socket 42 fitting onthe hes-(1 18 of the shaft Y 17 the brine container iii-P08151011 with I 13'; and the {cream container ;41 being; filled,

the ,dash 46= and 'cover '47 are placedin the"- cream-container?and the strap,- 51 is latched idewthev posedby the p down with the flattened end 58 of the shaft 44 passing through the washer 63.

The shaft 21 is then started to operate by suitable power means, not shown, whereupon the 'cream container 41 is rotated in alternately opposite directions as r the cream freezes. The resistance to relative movement by the, dash elements 46 and cream container 41 increases as the cream freezes and when this resistance to relative movement s gre at-" er than the reslstance to movement of the washer 63 by reason of the tension of the bolts 66' and "67', the washer 63 begins to rotate with the cream container, thereby relieving the dasher elements of strain and indicating whenth'e cream has frozen to the proper consistency. When theoperatorobserves that the flattened'end of the shaft 58 is-no longer stationary, he knows that the cream is properly frozen. t a

VVhile-Ihave shown my invention in but one formfiit-will be obvious to-those skilled inthe-art that' it is not so limited but is sus-,

ceptible of various changes and modifications ,one of said members, and means having 00- acting surfaces in contact with geach other over" a large area for causingzea "frictional I force j-normally "holding-the other of said membersstationary but adapted to' permit motionqthereof when the: cream has been frozen to 1 a predetermined consistency.-

2. In an icecream freezer, the combina-- tion ofacream container, a dasher mounted within said creamcontainer,a.shaft for turning said cream container about its axis, and means, having coactingsurfaces in contact with each other over a large area for exertingv a frictional force resisting movement of saidfd'zisher, said force being less thanthat I tending to turn the dasher'with said cream containerwhen the cream has reached a re determined consistency.

tion Ora-creamcontainer, a dasher'mo'unted' within s'aid cream container; means for turnings'aid cream container about its axis, means comprisingcoact1ng=surfaces in contact with-"each other' overia large area for frictionalforce normally suflicient to-hold said i dasherstationary but adaptedexerting a riorart, orv as are specifically 1 freezer, the combina= 7 faces relative to each other whereby the frictional force may be changed for use when differentmaterials are frozen and different freezer comprising, in combination, a brine freezer, and a clamp for holding said disk in a tank, a cream container mounted within the brine tank and adapted to be oscillated by the agitator mechanism, a dasher mounted within-said cream container, and meanscomprising coacting surfaces in contact with each other over a large area for exerting. a frictional force resisting movement of said dasher in either direction but permitting movement thereof to follow the movement of the cream container when the cream has reached a predetermined consistency.

5. In an ice cream freezer, the combination of a cream container adapted to be turned about its axis, a dasher mounted within said cream container" and having a central shaft, and a pair ofsurfaces held in frictional engagement ,over a large area normally holding said dasher stationary but slipping to permit movement thereof when the cream has been frozen to a predetermined consistency, the top of said dasher shaft being visible from outside of the freezer whereby its movement may be seen to indicate when the cream is frozen. 7

6. In an ice cream freezer, the combination of a cream container adapted to be turned about its axis, a dasher mounted within said cream container, and frictional means "normally holding said dasher stationary but permitting movement thereof when the cream has reached a predetermined consistency, said means comprising two friction surfaces, one of which is held stationary and the other is rigid against rotation relative to the dasher, and means for clamping said surfaces together.

7 In an ice cream freezer, the combination of a cream container adapted to be turned about its axis, a dasher mounted within said cream container'and having a central shaft, and meansexerting a frictional force resisting movement of the dasher but adapted to permit movement thereof when the cream has reached a predetermined consis-. tency, said means comprising a disk fixed against rotation relative to the dasher shaft, a member rigid with a stationary part of the frictional contact with said member.

8. In an ice cream freezer, the combination of a cream container adapted to be oscillated about its axis, a dasher mounted within said container, and frictional surfaces in contact with each other over a large area normally holding said dasher stationary but slipping to permit said dasher to oscillate with said container throughout the full range of move ment thereof when the. cream has been frozen to a predetermined consistency.

9. An ice cream freezer comprising, 1n.

combination, a cream container, a dasher therein, means for rotating one of said parts,

and frictionalmeans forholding the other with said other part and the other of which elements is stationary, and adjustable means 7 for clamping said elements together with varying degrees of pressure. 1

In testimony whereofI aflix my signature.

CLIFFORD E. COLE.

Hill 

